A comedy in which an American tourist waiting at the Tuileries station becomes involved in the conflict between a young couple after he breaks the cardinal rule of avoiding eye contact with people on the Paris Metro.

A young immigrant woman sings a Spanish lullaby ("Qué Linda Manita") to her baby before leaving it in a daycare. She then takes an extremely long commute to the home of her wealthy employer (whose face is not seen), where she sings the same lullaby to her employer's baby.

Prepared to leave his marriage for a much younger lover, Marie Christine, a man named Sergio instead decides to stay with his wife after she reveals a terminal illness - and he rediscovers the love he once felt for her.

An older man and younger woman meet for an arrangement that a third person ('Gaspard'), who is close to the woman, may not be happy about. It is eventually revealed that the young woman is his daughter, and Gaspard is her baby. The segment was shot in a single continuous shot, almost five minutes long. When the characters walk by a video store, several posters of films by the other directors of Paris, je t'aime are visible in the window.

A Nigerian man dying from a stab wound in the Place des fêtes asks a female paramedic for a cup of coffee. It is then revealed that he had fallen in love at first sight with her some time previously. By the time she remembers him, and has received the coffee, he has died.

In this dialogueless segment, a young backpacker traveling late at night stumbles across a corpse—and a vampiress feeding on it. Though initially frightened, he soon falls in love with her, and cuts his wrist to attract her with his blood. The wound causes the backpacker to fall down a flight of stairs and strike his head against the pavement in a potentially fatal injury, but the vampiress reappears and feeds him some of her own blood, turning him into a vampire and allowing the two to begin a relationship.

Julio Medem was attached to the project for a long time. He was supposed to direct one of the segments, but this finally fell through because of scheduling conflicts with the filming of Caótica Ana (2007).

Paris, je t'aime is the first feature film to be fully scanned in 6K and mastered in 4K in Europe (as opposed to the normal 2K). Encoding the image took about 24 hours per reel (at Laboratoires Éclair).[citation needed]

As the film is a collection of shorter segments, there were many producers attached to the project.

Following the success of Paris, je t'aime, a similarly structured film, New York, I Love You, focusing on life in that city, premiered at the 2008 Toronto Film Festival and was released in a limited number of theatres in 2009.

The Cities of Love website states that there are 3 more films in the series to be released. They include Rio, Eu Te Amo, Shanghai, 我爱你 and Jerusalem, I Love You. All 3 films will follow the same style with no fewer than 10 short films using their respective city as the main unifying character. The films are slated for release around 2010-2013.

Paris, je t'aime received generally positive reviews, currently holding an 86% "fresh" rating on Rotten Tomatoes; the consensus states: "Paris je t'aime is uneven, but there are more than enough delightful moments in this omnibus tribute to the City of Lights to tip the scale in its favor."[7]Metacritic gives the film a 66/100 rating, indicating "generally favorable reviews".[8]